RE: broadhead weight
I agree with the above first, make sure your bow is tuned well. You may need to drop down to a 100 grn point, or you may just be fine with the 125's. More than likely either point wieght will shoot and tune for you with a little work. You won't realy gain that much speed with a 100 point, but I have found that for the most part, all thing being equell, the 100 points from the same manufacture tend to penitrate a bit better than their 125 grn counterparts. The differnce realy is small and not worth considering unless you are going to be hunting moose or elk with a marginal setup. Pick the one that shoots and tunes best for you.
TAKE YOUR KIDS HUNTING AND YOU WON'T BE HUNTING FOR YOUR KIDS